I have a little "travel purse" or something that I bought specifically for taking to WDW several years ago and it is great! It has a flap on the front with two zippered pockets (one on the outside, one on the inside) plus the flap is closed with a clip. It also has two zippered inside sections and two zippered side pockets, a strap that holds a folded map nicely, and several pockets on the inside. I love being able to organize all my stuff in it, and the whole thing is still quite small. It comes with a long strap that I can wear across my body so that the purse itself is tucked against my hip and not in the way. Anyway, I keep my annual pass in one of the flap pockets and my resort key on the other side, and they are quick and easy to access that way.
Teresa